/*
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 *     contributors may be used to endorse or promote products derived
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 */
#include <map>
#include <string>

#include <boost/python.hpp>

#include <object_recognition_core/common/json.hpp>

namespace bp = boost::python;

namespace object_recognition_core
{
  namespace common
  {
    or_json::mObject
    BpDictToJson(const bp::dict &bp_dict)
    {
      or_json::mObject params;
      bp::list l = bp_dict.items();
      for (int j = 0, end = bp::len(l); j < end; ++j)
      {
        std::string key = bp::extract<std::string>(l[j][0]);
        // Try to extract a string
        {
          bp::extract<std::string> extract(l[j][1]);
          if (extract.check())
          {
            params[key] = or_json::mValue(std::string(extract));
            continue;
          }
        }
        // Try to extract an int
        {
          bp::extract<int> extract(l[j][1]);
          if (extract.check())
          {
            params[key] = or_json::mValue(int(extract));
            continue;
          }
        }
        throw std::runtime_error("BpDictToJson: unimplemented type");
      }
      return params;
    }

    bp::dict
    JsonToBpDict(const or_json::mObject & map)
    {
      bp::dict bp_dict;
      for (or_json::mObject::const_iterator iter = map.begin(), end = map.end(); iter != end; ++iter)
      {
        switch (iter->second.type())
        {
          case or_json::int_type:
            bp_dict[iter->first] = iter->second.get_int();
            break;
          case or_json::str_type:
            bp_dict[iter->first] = iter->second.get_str();
            break;
          default:
            throw std::runtime_error("MapToBpDict unimplemented type");
        }
      }
      return bp_dict;
    }
  }
}
